Telegraphophone.



No. 658,862. Patented Oct. 2, I900.

E. C. PARAMURE.

TELEGBAPI-IOPHONE.

(Application filed Nov. 18, 1899.)

(No Model.)

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PATENT EDWARD O. PARAMORE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO HOWARD T. GOODWIN, OF RIDLEY PARK, PENNSYLVANIA.

TELEGRAPHOPHOJNE.

SPECIFICATION forming part of Letters Patent No. 658.862, dated October 2, 1900.

Application filed November 18, 1899- Serial No. 737,481. (No model.)-

To all whom it may concern.-

Be it known that I, EDWARD C. PARAMORE, a citizen of the United States, residing at Philadelphia, (Germantowm) in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Telegraphophones, of which the following is a specification.

My invention relates to telegraphophones to of the type designed to transmit and record an oral message at one end of a telephone-line and record and reproduce the message synchronously at the opposite or receiving end of said line.

The objects of my invention are to provide reliable means for recording andreproducing vocal sounds in a telephone-line, especially of the long-distance type, and to provide an,

extremely-sensitive torsion-spring for the recording-stylus and to arrange at each end of the line or at intermediate points a transmitting,receiving,recording,and reproducing stylus, each mounted upon a spring of equal tension in order that harmonic relation may be established.

Another object is to provide simple and efficient means for adjusting the tension of said springs, and still another object of myinvention is to remedy the defects existing in telephone-lines as at present constructed, especially the defects relating to cross-line interruptions and interferences, and to provide for the recording and reproducing of a message automatically at substantially the same time.

These objects are attained by means of the construction shown in the accompanying drawings, in which Figure 1 is a side elevation of the recording and reproducing mechanism. Fig. 2 is a plan View. Fig. 3 is a perspective View of the transmitter or receiving mechanism. Fig. 4 is a diagrammatic illustration of a portion of atelephone system arranged in accordance with my invention.

In said drawings the numeral 1 designates the transmitter, which may be of any ordinary or well-known construction, and arranged at any suitable position near said transmitter is a recorder 2. At the opposite or receiving end of the line a combined recorder and reproducer is employed, and as these two devices at opposite ends of the line are substantially alike in structure the one at the receiving end will be described, since some of the advantages of my invention may be secured without the recorder at the outgoing end of the line.

Suitably mounted upon a base or support 3 are two posts 44, provided with slots 5 5 in their upper ends. Seated at its opposite ends in these slots 5 5 is a flat spring 6, which is of the requiredthickness and width to have a sensitive torsional resilience when given the necessary tension by the set-screws 7 7. These set-screws pass'through apertures 8 8 in the posts 4 4 and bear against theside of the spring 6 to hold it firmly in place. A thumb-screw 9 is attached to one post 4, and this thumb-screw is attached to the end of the spring. By turning this screw the tension of the spring is adjusted or regulated. An arm 10 is secured at one end to the spring centrally between the posts. As shown, this arm has oppositely-extending feet 11, riveted to the spring. At a central point 0pposite the arm 10 an arm 12 is secured to the spring by the same rivets which attach the arm 10 to said spring. The arm 12 is also provided with oppositely-extending feet 13, and the two arms 10 and 12 are thus held in alinement and rigidly attached to the spring 6 at opposite sides thereof. A stylus 14 is formed on or attached to the end of arm 12, and the point of the stylus rests upon a rec- 0rd tube or disk 15, properly journaled and connected to revolve during the operation of the stylus. A reproducer 16 of any wellknown or preferred form is superposed above the tube or disk 15 at a slight distance from the stylus in order that the message may be produced immediately after it is recorded on the tube or disk, and the arrangement is such that the reproducer will commence to deliver the message about the time two words have been recorded, as will be readily understood upon reference to the drawings. The outer end of the arm 10 is located in juxtaposition under the electromagnet 16 and an armature 17 is attached to said arm, which repeats IOO the vibrations of the transmitter. The recorder 2 hereinbefore referred to may be used,

if desired, to record outgoing messages and to also receive the incoming responses, and it will be understood that this recorder is of the same general construction as that already described.

The operation of my device is as follows: A message sent through the transmitter l is communicated to the recorder 2 and simultaneously over the line to the combined recorder and reproducer at the receiving end. The springs 6 of both recorders are adjusted to have substantially the same tension to be in harmonic accord and to be extremely sensitive and responsive. The torsional vibrations of these springs give the necessary movement to the Styluses and result in a perfect record. 0

My device is particularly desirable for longdistauce lines, avoiding cross-line interruptions and leaving a record of the message, which can be reproduced at any time should the person to whom it was addressed be absent at the time the message is sent.

It will be understood, of course, that the recording device which I have disclosed may be used in other relations than those shown, and I do not therefore wish to be restricted in this particular.

Having thus described my invention, What I claim is In a recorder for sou nd-reproducing instruments, a flat torsion-spring secured at its ends in slotted posts, set-screws to hold said spring in the posts, and a set-screw for adjusting the tension of said spring, in combination with a stylus-arm attached to said spring and an arm carrying an armature also attached to said spring, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

EDWARD C. PARAMORE. Witnesses:

FRANK B. WAGNER, S. HORACE MYERS. 

